Just admit it, you are against people using wood for heating. Why I don't know, unless you have some irrational fear of ppm levels of pollutants that are unlikely to have any influence on the air in your house already. Do you avoid cooking, or using any cleaning products too?
25 inhabitants per square mile is a very low density of housing, and common even in what most people would call rural areas. The US Census map cuts off at 50 inhabitants per square mile, and those places are really remote.
Yes, 25 does appear to low according to that map. But recall I support local government override. Thanks for the helpful reply.